Effect of 3D Stress States at Crack Front on Deformation

Effect of 3D Stress States at Crack Front on Deformation, Fracture ...

This thesis aims to elucidate the role of three-dimensional stress states in the deformation, fracture and fatigue phenomena further. The main ...

(PDF) Effect of 3D stress states at crack front on deformation, fracture ...

(DOI: 10.4225/55/5913BD2BBCD0F) Thesis (Ph.D.) (Research by Publication) -- University of Adelaide, School of Mechanical Engineering, 2016.

3D effects on crack front core regions, stress intensity factors and ...

An assumption of two-dimensional plane stress or plane strain delivers useful two-dimensional results with reasonable accuracy. However, three-dimensional ...

Three-dimensional stress and deformation fields around flat and ...

Analysis results reveal several stress/deformation field variations around flat and slant cracks under identical remote loading conditions. First, close to the ...

A brief review of three-dimensional effects near crack front

A number of authors came up to a conclusion that the 3D stress state region is located within one-half of the plate thickness from the crack tip [35-38]. A ...

(PDF) Three-dimensional stress and deformation fields around flat ...

Analysis results reveal several stress/deformation field variations around flat and slant cracks under identical remote loading conditions. First, close to the ...

Constraint Effect on 3-D Crack-Front Stress Fields in Elastic-Plastic ...

Results show that the in-plane stress fields near the crack front for various applied loads possess the plane strain nature throughout the thickness except in ...

STRESS AND STRAIN IN FRONT OF THE FATIGUE CRACK WITH ...

Focusing on the stress state, tensile mode could be characterized by very high normal stresses whereas shear stresses in the crack plane are negligible. In the ...

Three-dimensional stress states at crack tip induced by shear and ...

The theoretical results indicate the existence of a strong plate thickness effect on the intensity of the coupled modes, which can significantly influence ...

3-D finite element analysis of cyclic deformation at the front of ... - DOI

The variation of stresses and strains through the plate thickness was analyzed. The monotonic and cyclic crack tip plastically deformed zones and opening ...

Variations of a Global Constraint Factor in Cracked Bodies Under ...

parameters, two- and three-dimensional. (2D and 3D) stress analyses have been used to determine stress and deformation states for cracked bodies. In the past,.

Three‐Dimensional Stress Intensity Factor Correction Method Based ...

The results show that the fatigue crack growth life of 7N01 aluminum alloy decreases with the increase of specimen thickness. The numerical ...

Fracture mechanics - Wikipedia

Mode III – Tearing mode (a shear stress acting parallel to the plane of the crack and parallel to the crack front). When the size of the plastic zone at the ...

62. Fracture Modes and Stress Concentration - YouTube

... Effect or Crack effect 6. Stress Concentration and Stress Concentration Factor 7. Notch Effect: Triaxial stress state 8. Plastic Constraint ...

3D effects on crack front core regions, stress intensity factors ... - OUCI

Ayhan, Mixed mode stress intensity factors for deflected and inclined corner cracks in finite-thickness plates, Int. · Bazant, Surface singularity and crack ...

Crack front elastic stress state for three-dimensional crack problems

Finite element analyses of a compact tension specimen with a straight crack front indicate the usefulness of this parameter in studying the influence of ...

Modeling Failure - 9.3 Elastic fracture mechanics

Many of the techniques of fracture mechanics rely on the assumption that, if one gets sufficiently close to the tip of the crack, the stress, ...

continuum and micromechanics treatment of constraint in fracture

The micromechanics model employs the J-Q descrip- tion of crack-front stresses to interpret fracture toughness values measured on laboratory specimens for.

Fracture mechanics of the three-dimensional crack front - CORE

Generalized stress intensity factor methodology and out-of-plane constraint based procedure are used for a reliable estimation of the stress state in front of ...

THREE DIMENSIONAL FINITE ELEMENT CALCULATIONS OF ...

assumes a constant stress intensity factor along the crack front, and a state of plane strain inside the specimen and a state of plane stress at the surface of ...